| Applicable Manufacturer | Sunward |
| Engine Model | 3TNV80-PSU |
| Equipment Type | Excavator |
| Engine Type | Vertical In-line 4-cycle Water-cooled Diesel Engine |
| Combustion Chamber | Special Swirl Engine Type |
| Air Intake System | Natural Aspiration |
| Bore | 3.1 in. |
| Stroke | 3.3 in. |
| Displacement | 77.3 cu in. |
| Rated Speed | 2400 RPM |
| Specific Fuel Consumption | <= 272 ( 200) |
| Compression Ratio | 23.1 (effective 21.3) |
| Fuel Injection Timing | Fic(n2 17.0+1.0/-1.0 Fic(air 17.5+1.0/-1.0 Fid 16.0+1/-1 Fir 8.7+1/-1 |
| Fuel Injection Pressure | Mpa (kgf/cm2 ) 12.3 +1/ 0 (125.4 +10.2/ 0.00) |
| Rotation Direction | Viewed From Flywheel Side Left |
| Governor | Centrifugal All Speed Engine Type |
| Cooling System | Radiator Cooling |
| Lubricating System | Forcible Lubrication |
| Starter | Electric Startin(starting Motor 12vdc-1.4kw) |
| Charger | Ic Regulator Built-in Engine Type (dc12v -40a) |
| Oil Capacity | 0.9 gal. 0.4 gal. |
| Coolant Capacity | 0.2 gal. |
| Flywheel | 295ID mark 4W01 |
| Oil Press Switch | 7.3 psi |
| Fuel Filter | Water Separator None |
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